Adjustable chair.



No. 635,452. Patented Oct. 24, i899. .1. r. WALTON. ADJUSTABLE GHMR.

(Applicntion M In. 17, 1899.)

(No Modal.)

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ATENT Fries.

JERROLD F. WALTON, OF DETROIT, MICHIGAN.

ADJUSTABLE CHAIR.

SPECIFICATION forming part of Letters Patent N 0. 635,452, dated October24, 1899. Application filed January 17, 1899. Serial No. 702,418. (Nomodel.)

To all whom it may concern:

Be it known that I, J ERROLD F. WALTON, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Adjustable Chairs, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

My invention relates to that class of adj ustable chairs in which theback is hinged to the seat-section and is adapted to be adjusted todifferent inclinations.

The invention consists in the peculiar construction of the adj ustingmeans employed, whereby the inclination of the back may be readilyadjusted by the occupant of the chair while seated therein, as morefully hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of my chair, looking atthe under side of the seat. Fig. 2 is a vertical central sectiontherethrough. Fig. 3 is a bottom plan view of the seat, and Fig. i is asection through the clamping-bearing.

A is the seat-section, which is provided with legs B and, if desired,with the arms 0.

D is the back, hinged to the rear edge of the seat-section in anysuitable way.

E is an arm or bracket secured to the backsection and extendingdownwardly and rearwardly therefrom. To the end of this arm is pivotallysecured a rod F, which extends beneath the seat and slidingly engageswith a bearing G, the latter being secured to the bottom of the seat.The rod F is preferably of the form shown in Fig. 2 of the drawings,being provided near its inner end with a shoulder or stop a, which isadapted to catch upon the bearing G and limit the rearward movement ofsaid rod. The rod is also provided with a stop I), which may be formedby an ordinary split pin and limits the forward movements of the rod.The bearing G is provided with a clamp, which I preferably form byproviding said bearing with a screw-threaded aperture 0, with which athreaded rod 61 engages, said rod extending laterally to the side of theseat, being provided with a suitable handle, such as H, by means ofwhich it may be screwed in to clamp and hold the rod F in any positionof adjustment.

the rod F, at its inner end, with a laterallyextending arm or hook I, towhich one end of the spring J is secured, the other end being attachedto an eye or securing-hook K at the rear end of the seat. With thisconstruction it will be observed that the tension of the spring J isconstantly exerted to draw the rod F rearwardly, and thus to raise theback to ward an upright position, while the weight of the occupant ofthe chair will enable him to readily overcome the tension of this springand lower the back to the position desired. It will also be observedthat the clamping device being operable from the side of the seat it isin a convenient position for adjustment.

What I claim as my invention is 1. In an adjustable chair thecombination with the seatand the hinged back of an arm secured to saidback projecting downwardly and rearwardly therefrom, a slotted bearingsecured beneath the seat, a rod pivotally secured at one end to said armand slidingly secured in said bearing, a clamp for adjustably holdingsaid rod in said bearing having an operating-shank extending to the sideof the seat, and a spring for raising the back.

2. In an adjustable chair the combination with the seat and the hingedback, of an arm secured to said back projecting downwardly andrearwardly therefrom, a stationary bearing G secured beneath said seat,the rod F pivotally secured to said arm, and slidingly engaging saidbearing, and provided with the stops a and b, the clamping-rod F havinga screw-threaded engagement with said bearing and extending to the sideof the seat, and the spring .I secured at one end to the inner end ofthe rod F and at its rear end to the seat.

In testimony whereof I affix my signature in presence of two witnesses.

JERROLD F. WALTON.

Witnesses:

M. B. ODOGHERTY, H. 0. SMITH.

